Short-Term Test Results: Multifamily Home Energy Efficiency Retrofit | |
Lyons, J. | |
关键词: DEEP ENERGY RETROFIT; RISK FACTOR; HYBRID HEAT PUMP; SAVINGS TO INVESTMENT RATIO; RESIDENTIAL; RESIDENTIAL BUILDING; BA-PIRC; BUILDING AMERICA; Electricity; Resources; and Buildings Systems; Buildings; | |
DOI : 10.2172/1068621 RP-ID : DOE/GO-102013-3796 PID : OSTI ID: 1068621 Others : Other: KNDJ-0-40339-00 |
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学科分类:能源(综合) | |
美国|英语 | |
来源: SciTech Connect | |
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【 摘 要 】
Multifamily deep energy retrofits (DERs) represent great potential for energy savings, while also providing valuable insights on research-generated efficiency measures, cost-effectiveness metrics, and risk factor strategies for the multifamily housing industry. The Bay Ridge project is comprised of a base scope retrofit with a goal of achieving 30% savings (relative to pre-retrofit), and a DER scope with a goal of 50% savings (relative to pre-retrofit). The base scope has been applied to the entire complex, except for one 12-unit building which underwent the DER scope. Findings from the implementation, commissioning, and short-term testing at Bay Ridge include air infiltration reductions of greater than 60% in the DER building; a hybrid heat pump system with a Savings to Investment Ratio (SIR) > 1 (relative to a high efficiency furnace) which also provides the resident with added incentive for energy savings; and duct leakage reductions of > 60% using an aerosolized duct sealing approach. Despite being a moderate rehab instead of a gut rehab, the Bay Ridge DER is currently projected to achieve energy savings ≥ 50% compared to pre-retrofit, and the short-term testing supports this estimate.
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